Form 8.5 EPT/Non RI RHI MAGNESITA N.V.

FORM 8.5 (EPT/NON-RI)

PUBLIC OPENING POSITION DISCLOSURE/DEALING DISCLOSURE BY AN

EXEMPT PRINCIPAL TRADER WITHOUT RECOGNISED INTERMEDIARY ("RI") STATUS

(OR WHERE RI STATUS IS NOT APPLICABLE)

Rule 8.5 of the Takeover Code (the "Code")

1.

KEY INFORMATION

(a)

Name of exempt principal trader:

BARCLAYS CAPITAL SECURITIES LTD

(b)

Name of offeror/offeree in relation to whose relevant securities this form relates:

RHI MAGNESITA N.V.

(c)

Name of the party to the offer with which exempt principal trader is connected

RHI MAGNESITA N.V.

(d)

Date position held/dealing undertaken:

21 Oct 2026

(e)

In addition to the company in 1(b) above, is the exempt principal trader making disclosures in respect of any other party to the offer?

YES: VESUVIUS PLC

2.

POSITIONS OF THE EXEMPT PRINCIPAL TRADER

(a)

Interests and short positions in the relevant securities of the offeror or offeree

to which the disclosure relates following the dealing (if any)

Class of relevant security:

EUR 1 ordinary

Interests

Short Positions

Number

(%)

Number

(%)

(1) Relevant securities owned and/or controlled:

223,848

0.47%

166,628

0.35%

(2) Cash-settled derivatives:

166,785

0.35%

225,872

0.48%

(3) Stock-settled derivatives (including options) and agreements to purchase/sell:

0

0.00%

0

0.00%

  TOTAL:

390,633

0.82%

392,500

0.83%

(b)

Rights to subscribe for new securities (including directors and other executive options)

Class of relevant security in relation to which subscription right exists

Details, including nature of the rights concerned and relevant percentages:

3.

DEALINGS (IF ANY) BY THE EXEMPT PRINCIPAL TRADER

(a)

Purchase and sales

Class of relevant security

Purchase/sale

Total number of securities

Highest price per unit paid/received

Lowest price per unit paid/received

EUR 1 ordinary

Purchase

549

31.5000 EUR

31.5000 EUR

EUR 1 ordinary

Sale

549

31.5000 EUR

31.5000 EUR

EUR 1 ordinary

Purchase

9190

26.7500 GBP

25.9996 GBP

EUR 1 ordinary

Sale

7030

26.8037 GBP

26.0000 GBP

(b)

Cash-settled derivative transactions

Class of relevant security

Product description

Nature of dealing

Number of reference securities

Price per unit

EUR 1 ordinary

SWAP

Decreasing Long

1,032

26.3556 GBP

EUR 1 ordinary

SWAP

Decreasing Short

15

26.3478 GBP

EUR 1 ordinary

SWAP

Increasing Long

387

26.7500 GBP

EUR 1 ordinary

SWAP

Closing Long

105

26.5970 GBP

EUR 1 ordinary

SWAP

Increasing Long

1

26.0000 GBP

EUR 1 ordinary

SWAP

Increasing Long

501

26.7486 GBP

EUR 1 ordinary

SWAP

Increasing Long

2

26.2000 GBP

EUR 1 ordinary

CFD

Closing Short

188

26.7478 GBP

EUR 1 ordinary

CFD

Opening Long

868

26.7478 GBP

EUR 1 ordinary

CFD

Decreasing Long

358

26.5124 GBP

EUR 1 ordinary

CFD

Decreasing Long

12

26.3308 GBP

EUR 1 ordinary

CFD

Decreasing Long

570

26.7500 GBP

EUR 1 ordinary

SWAP

Increasing Short

2,403

26.5562 GBP

EUR 1 ordinary

SWAP

Opening Long

1,127

26.4237 GBP

EUR 1 ordinary

SWAP

Decreasing Long

1,405

26.4035 GBP

EUR 1 ordinary

SWAP

Decreasing Long

27

26.4898 GBP

EUR 1 ordinary

SWAP

Increasing Long

95

26.5268 GBP

EUR 1 ordinary

SWAP

Increasing Long

583

26.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

357

26.6645 GBP

EUR 1 ordinary

SWAP

Decreasing Long

170

26.5358 GBP

EUR 1 ordinary

SWAP

Closing Long

757

26.4071 GBP

EUR 1 ordinary

SWAP

Opening Short

324

26.4071 GBP

EUR 1 ordinary

SWAP

Increasing Long

305

26.4000 GBP

EUR 1 ordinary

SWAP

Increasing Long

293

26.6687 GBP

EUR 1 ordinary

SWAP

Increasing Long

66

26.3515 GBP

EUR 1 ordinary

SWAP

Decreasing Short

188

26.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

51

26.5500 GBP

EUR 1 ordinary

SWAP

Increasing Long

2

26.2998 GBP

EUR 1 ordinary

SWAP

Increasing Long

24

26.7500 GBP

EUR 1 ordinary

SWAP

Closing Short

136

26.7500 GBP

EUR 1 ordinary

SWAP

Increasing Long

51

26.8036 GBP

EUR 1 ordinary

SWAP

Decreasing Long

50

26.4700 GBP

EUR 1 ordinary

SWAP

Decreasing Long

920

26.3348 GBP

EUR 1 ordinary

SWAP

Increasing Long

196

26.3571 GBP

EUR 1 ordinary

SWAP

Increasing Long

190

26.3865 GBP

EUR 1 ordinary

SWAP

Decreasing Long

125

26.3652 GBP

(c)

Stock-settled derivative transactions (including options)

(i)

Writing, selling, purchasing or varying

Class of relevant security

Product description

Writing, purchasing, selling, varying etc

Number of securities to which option relates

Exercise price per unit

Type

Expiry date

Option money paid/ received per unit

(ii)

Exercising

Class of relevant security

Product description

Exercising/ exercised against

Number of securities

Exercise price per unit

(d)

Other dealings (including subscribing for new securities)

Class of relevant security

Nature of Dealings

Details

Price per unit (if applicable)

4.

OTHER INFORMATION

(a)

Indemnity and other dealings arrangements

Details of any indemnity or option arrangement, or any agreement or understanding, formal or informal, relating to relevant securities which may be an inducement to deal or refrain from dealing entered into by the exempt principal trader making the disclosure and any party to the offer or any person acting in concert with a party to the offer:

NONE

(b)

Agreements, arrangements or understandings relating to options or derivatives

Details of any agreement, arrangement or understanding, formal or informal, between the exempt principal trader making the disclosure and any other person relating to: (i) the voting rights of any relevant securities under any option; or (ii) the voting rights of future acquisition or disposal of any relevant securities to which any derivative is referenced:

NONE

(c)

Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

22 Oct 2026

Contact name:

Large Holdings Regulatory Operations

Telephone number:

020 3134 7213